Multicore fiber
AssigneesFujikura Ltd., National University Corporation Hokkaido University
InventorsYusuke Sasaki, Hitoshi Uemura, Katsuhiro Takenaga, Kunimasa Saitoh
Life of this patent
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Abstract
A multicore fiber 1 includes: a small diameter portion 33 in which a propagation constant of light of an x1-th order LP mode of the first core 11 (here, x1 is an integer of “2” or more and x or less, x is an integer of “2” or more) and a propagation constant of light of a y1-th order LP mode of the second core 12 (here, y1 is an integer of “1” or more and y or less other than x1, y is an integer of “1” or more) coincide with each other and a large diameter portion in which a propagation constant of light of each LP mode of the first core 11 and a propagation constant of light of each LP mode of the second core 12 are configured not to coincide with each other are arranged.
Claims10
A multicore fiber comprising:
- a first core that propagates light of up to an x-th order LP mode (here, x is an integer of “2” or more);
- and
- a second core that propagates light, of up to a y-th order LP mode (here, y is an integer of “1” or more),
- wherein a different-mode interaction section in which a propagation constant of light of an x1-th order LP mode of the first core (here, x1 is an integer of “1” or more and x or less) and a propagation constant of light of a y1-th order LP mode of the second core (here, y1 is an integer of “1” or more and y or less other than x1) coincide with each other and a different-mode non-interaction section in which a propagation constant of light of each LP mode of the first core and a propagation, constant, of light of each LP mode of the second core are configured not to coincide with each other are arranged.
Dependencies are inferred from the claim text.